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Insert Unicode character into JavaScript
...way of deriving the hexadecimal value for a unicode string from within JavaScript is: "Ω".codePointAt(0).toString(16);
– KostasX
Jun 5 at 11:39
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...
curl: (60) SSL certificate problem: unable to get local issuer certificate
...Hello Server Hello, Certificate, Server Hello Done Alert (level : Fatal, Description: unknown CA (48)) Can you please guide me and help me out in this ?
– user3812540
Jul 8 '14 at 4:44
...
Event listener for when element becomes visible?
...target').style.display;
if (previous_style != current_style) {
alert('style changed');
window.clearInterval(poll);
} else {
previous_style = current_style;
}
}, 100);
The DOM standard also specifies mutation events, but I've never had the chance to use them, and...
javascript: pause setTimeout();
...ng);
};
this.resume();
};
var timer = new Timer(function() {
alert("Done!");
}, 1000);
timer.pause();
// Do some stuff...
timer.resume();
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...
Best way to detect that HTML5 is not supported
...
try {
document.createElement("canvas").getContext("2d");
alert("HTML5 Canvas is supported in your browser.");
} catch (e) {
alert("HTML5 Canvas is not supported in your browser.");
}
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...
JavaScript: How to pass object by value?
...bj = Object.create( x );
obj.foo = 'foo';
obj.bar = 'bar';
})(o);
alert( o.foo ); // undefined
So any properties you add to obj will be not be added to o. Any properties added to obj with the same property name as a property in o will shadow the o property.
Of course, any properties adde...
Why was the arguments.callee.caller property deprecated in JavaScript?
...d)
return arguments.callee(true);
if (this !== global)
alert("This is: " + this);
else
alert("This is the global");
}
sillyFunction();
Anyhow, EcmaScript 3 resolved these issues by allowing named function expressions, e.g.:
[1,2,3,4,5].map(function factorial(n) {
...
JavaScript curry: what are the practical applications?
...rototype.split.partial(/,\s*/);
var results = "John, Resig, Boston".csv();
alert( (results[1] == "Resig") + " The text values were split properly" );
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...
Why does !{}[true] evaluate to true in JavaScript?
...ted as false:
http://jsfiddle.net/67GEu/
'use strict';
var b = {}[true];
alert(b); // undefined
b = !{}[true];
alert(b); // true
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...
Perform debounce in React.js
....
Without persist (default behavior: pooled event)
onClick = e => {
alert(`sync -> hasNativeEvent=${!!e.nativeEvent}`);
setTimeout(() => {
alert(`async -> hasNativeEvent=${!!e.nativeEvent}`);
}, 0);
};
The 2nd (async) will print hasNativeEvent=false because the event proper...